# Kigen ~ penguin task tracker vs Koko就活

The clearest difference is in-app purchases: Koko就活 at none against Kigen ~ penguin task tracker's 3. Koko就活 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Kigen ~ penguin task tracker sells 3 one-off in-app purchases. Koko就活 asks for nothing beyond the download.

Kigen ~ penguin task tracker ships an update every 9 days, Koko就活 every 5 days. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Kigen ~ penguin task tracker | Koko就活 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 63 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Taito Iikura](https://appshunter.io/developer/1506013840) | [RAYLAC, K.K.](https://appshunter.io/developer/1720058707) |

## What reviewers say

### Kigen ~ penguin task tracker

[App page](https://appshunter.io/ios/app/kigen-penguin-task-tracker/id6477283404)

This app helps you manage tasks and meet deadlines with a simple interface. It uses color-coded indicators for due dates and a punctuality level system to motivate users. Receive timely notifications to stay on track.

**Highlights:** Task title, note, due date, and importance entry, Color-coded due date status indicators, Punctuality level system for motivation, Customizable deadline notifications, Simple task completion marking

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Kigen App | $1.99 | one-time |
| Support Kigen App | $4.99 | one-time |
| Ads Free Plan | $14.99 | one-time |


### Koko就活

[App page](https://appshunter.io/ios/app/koko-2028/id6793815031)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kigen ~ penguin task tracker free?

Kigen ~ penguin task tracker is free to download, with in-app purchases available.

### Is Koko就活 free?

Koko就活 is free to download, with no in-app purchases.

### Do Kigen ~ penguin task tracker or Koko就活 have ads?

Kigen ~ penguin task tracker shows ads; Koko就活 does not.

### Which is updated more often, Kigen ~ penguin task tracker or Koko就活?

Kigen ~ penguin task tracker ships an update every 9 days, and Koko就活 every 5 days. Most recently, Kigen ~ penguin task tracker was updated on October 22, 2026 and Koko就活 on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*